Goulds Pumps 25GS Series - 25 GPM Submersible Water System Pump

Goulds Pumps 25GS Series Features:

• The Guardian® Bearing System - features longer thread engagement in the casing for greater strength and improved serviceability. It also provides a smooth transition at the casing lip for easy removal; the pump won’t catch on well casing joints.
• Powered for Continuous Operation - All ratings are within the working limits of the motor as recommended by the motor manufacturer. Pump can be operated continuously without damage to the motor.
• Field Serviceable - Pump can be rebuilt in the field to like new condition with common tools and readily available spare parts. NOTE: The Model GS has left hand casing threads.
• Sand Handling Design - Our face clearance, floating impeller stack has proven itself for over 40 years as a superior sand handling, durable pump design.
• Stainless Steel Metal Parts - AISI types 302, 303, 304 are corrosion resistant, non-toxic and non-leaching.
• FDA Compliant Non-Metallic Parts - Impellers, diffusers and bearing spiders are constructed of glass filled engineered composites. They are corrosion resistant and non-toxic.
• Discharge Head - High profile precision cast 303 stainless steel for superior strength and durability. Cast in loop for safety line.
• Motor Adapter - Precision cast 303 stainless steel is extremely rigid for accurate alignment of liquid end to motor. Generous space for removal of motor mounting nuts with regular open-end wrench.
• Bowls - Stainless steel for strength and abrasive resistance.
• Check Valve - Built in check valve constructed of stainless steel and low compression, FDA compliant, BUNA rubber for excellent abrasive resistance and quiet, efficient operation.
• Stainless Steel Casing - Polished stainless steel is strong, attractive and corrosion resistant.
• Hex Shaft Design - Six sided shafts for positive impeller drive.
• Shaft Coupling - Exposed for ease of field alignment to motor shaft and to check pump rotation.
• Urethane Upper and Middle Bearings - Fluted design for free passage of abrasives and excellent resistance to sand damage.
• NEMA Motor

Goulds Pumps 25GS Series Specifications:

• Corrosion resistant stainless steel construction.
• Built-in surge arrestor is provided on single phase motors through 5 HP.
• Stainless steel splined shaft.
• Hermetically sealed windings.
• Replaceable motor lead assembly.
• UL 778 recognized.
• NEMA mounting dimensions.
• Control box is required with 3 wire single phase units.
• Three phase units require a magnetic starter with three leg protection.
• Magnetic starter and heaters must be ordered seperately.

• Flow Range (GPM) ----- 8 – 33
• Horsepower Range ----- 1 – 5
• Best Efficiency GPM ----- 25
• Discharge Connection ----- 1-1/4
• Minimun Well Size ----- 4"
• Rotation ----- CCW

Agency Listings:

• UL778 listing on factory assembled complete pump and motor units.
• CSA listing on all water ends, complete units and motors.
• Motors are UL778 recognized.
• Pumps and motors comply with ANSI/NSF std. 61.

Additional Documentation:

GS Bulletin
4" Pump Installation and Maintenance Manual
GS Repair Parts - Pumps built after July 2005
GS Repair Parts - Pumps built from 1/03-7/05
Product Brochure - GS Guardian System

About the new Guardian® Bearing System

GS Submersibles have always had a reputation for being reliable and tough pumps. Now the best is even better!

The new Guardian System now makes the GS Submersible pumps even tougher and longer lasting.

The Guardian System includes an engineered polymer bearing which is resistant to damage from sand, abrasives
and over pumping a well. It has years of field-proven reliability and durability in some of the world’s toughest submersible pump applications, coalbed methane recovery wells.

GS submersibles have long featured one of the most durable stages in the industry. Our floating impeller stack design, made with Noryl® impellers, Lexan® diffusers and stainless steel bowls has proven itself for over four decades as a best sand handling design in the industry.

The New Model GS Discharge Head, with dual safety loops, identifies that the new Guardian Bearing System is inside.

The new GS features longer thread engagement in the casing for greater strength and improved serviceability. It also provides a smooth transition at the casing lip for easy removal; the pump won’t catch on well casing joints.

The “Guardian Bearing System” features:

• Engineered polymer bearing material protects against wear from abrasives and over-pumped wells
• Enclosed, smooth bore bearing design for longer life
• New Dual Surface Upthrust Washer provides improved protection to the internal components during upthrust
• Redesigned Noryl upper bearing spider with an abrasive deflector plate for improved abrasion resistance
• Longer intermediate bearing spider on the larger, dual casing pumps for strength

The Goulds Pumps GS Submersible features our floating stack hydraulic design. This field proven design has over four decades of reliable, sand-handling, abrasion resistant service to its credit. Noryl impellers, Lexan diffusers and Stainless Steel bowls; a Goulds Pumps exclusive design.

Technical Manual for Water Products